Delta Electronics Delphi E36SR3R320NRFA User manual

Brand: Delta Electronics

Model: Delphi E36SR3R320NRFA

Type: User manual

FEATURES

 High efficiency: 89% @ 5V/ 15A

 Size: 58.4mm x 22.8mm x 9.2mm

(2.30”x0.90”x0.36”)

 Industry standard pin out

 18~75V extremely wide 4:1 input range

 Fixed frequency operation

 Input UVLO, Output OCP, OVP and OTP

 2250V isolation

 Basic insulation

 No minimum load required

 SMD and through-hole versions

 ISO 9001, TL 9000, ISO 14001, QS 9000,

OHSAS 18001 certified manufacturing

facility

 UL/cUL 60950-1 (US & Canada)

Recognized, and TUV (EN60950-1)

Certified

 CE mark meets 73/23/EEC and 93/68/EEC

directives.

OPTIONS

 Positive On/Off logic

 Short pin lengths available

 SMD pin

Delphi Series E36SR, 75W Eighth Brick Family

DC/DC Power Modules: 18~75V in, 5V/15A out

The Delphi Series E36SR Eighth Brick, 18~75V input, single output,

isolated DC/DC converter is the latest offering from a world leader in

power systems technology and manufacturing — Delta Electronics, Inc.

This product family operates from an extremely wide 18~75V input range

and provides up to 75 watts of power in an industry standard eighth brick

footprint and pinout. With creative design technology and optimization o

component placement, these converters possess outstanding electrical

and thermal performances, as well as extremely high reliability unde

highly stressful operating conditions. All models are fully protected from

abnormal input/output voltage, current, and temperature conditions. The

Delphi Series converters meet all safety requirements with basic

insulation.

APPLICATIONS

 Telecom / Datacom

 Wireless Networks

 Optical Network Equipment

 Server and Data Storage

 Industrial / Testing Equipment

DATASHEET

DS_E36SR05015_01042008

TECHNICAL SPECIFICATIONS

=25°C, airflow rate=300 LFM, V

=48Vdc, nominal Vout unless otherwise noted.)

PARAMETER NOTES and CONDITIONS E36SR05015 (Standard)

Min. Typ. Max. Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous 18 24/48 75 Vdc

Transient (100ms) 100ms 100 Vdc

Operating Temperature Refer to Figure 21 for measuring point -40 122 °C

Storage Temperature -55 125 °C

Input/Output Isolation Voltage 2250 Vdc

INPUT CHARACTERISTICS

Operating Input Voltage 18 24/48 75 Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold 18 18.5 19 Vdc

Turn-Off Voltage Threshold 16.5 17 17.5 Vdc

Lockout Hysteresis Voltage 1 1.5 2 Vdc

Maximum Input Current 100% Load, 18Vin 5 A

No-Load Input Current No load, 48Vin 70 mA

Off Converter Input Current 10 15 mA

Inrush Current(I

t) 1 A

Input Reflected-Ripple Current P-P thru 12µH inductor, 5Hz to 20MHz 20 mA

Input Voltage Ripple Rejection 120 Hz 60 dB

OUTPUT CHARACTERISTICS

Output Voltage Set Point Vin=48V, Io=Io.max, Tc=25°C 4.95 5.0 5.05 Vdc

Output Voltage Regulation

Over Load Io=Io,min to Io,max ±5 ±10 mV

Over Line Vin=18V to 75V ±5 ±10 mV

Over Temperature Tc=-40°C to 85°C ±25 ±50 mV

Total Output Voltage Range over sample load, line and temperature 4.9 5.1 V

Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth

Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 60 mV

RMS Full Load, 1µF ceramic, 10µF tantalum 10 30 mV

Operating Output Current Range 0 15 A

Output DC Current-Limit Inception Output Voltage 10% Low 110 140 %

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient 48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs

Positive Step Change in Output Current 25% Io.max to 50% Io.max 150 mV

Negative Step Change in Output Current 50% Io.max to 25% Io.max 150 mV

Settling Time (within 1% Vout nominal) 200 us

Turn-On Transient

Start-Up Time, From On/Off Control 2 20 ms

Start-Up Time, From Input 10 20 ms

Maximum Output Capacitance Full load; 5% overshoot of Vout at startup 5000 µF

EFFICIENCY

100% Load 89 %

60% Load 90 %

ISOLATION CHARACTERISTICS

Input to Output 2250 Vdc

Isolation Resistance 10 MΩ

Isolation Capacitance 1500 pF

FEATURE CHARACTERISTICS

Switching Frequency 300 kHz

ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On) Von/off at Ion/off=1.0mA 0 1.8 V

Logic High (Module Off) Von/off at Ion/off=0.0 µA 2.4 18 V

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off) Von/off at Ion/off=1.0mA 0 1.8 V

Logic High (Module On) Von/off at Ion/off=0.0 µA 2.4 18 V

ON/OFF Current (for both remote on/off logic) Ion/off at Von/off=0.0V 1 mA

Leakage Current (for both remote on/off logic) Logic High, Von/off=15V 50 uA

Output Voltage Trim Range

Across Pins 9 & 5, Pout ≦ max rated power

-10% 10% %

Output Voltage Remote Sense Range

Pout ≦ max rated power

10 %

Output Over-Voltage Protection Over full temp range; % of nominal Vout 6 V

GENERAL SPECIFICATIONS

MTBF Io=80% of Io, max; 300LFM

25℃ 2.2 M hours

Weight 25 grams

Over-Temperature Shutdown Refer to Figure 21 for measuring point

DS_E36SR05015_01042008

127 °C

ELECTRICAL CHARACTERISTICS CURVES

Figure 1: Efficiency vs. load current for minimum, nominal, and

maximum input voltage at 25°C.

DS_E36SR05015_01042008

Figure 2: Power dissipation vs. load current for minimum,

nominal, and maximum input voltage at 25°C.

Figure 3: Typical full load input characteristics at room

temperature.

ELECTRICAL CHARACTERISTICS CURVES

Figure 4: Turn-on transient at full rated load current (CC mode)

(5ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace:

ON/OFF input, 5V/div.

Figure 5: Turn-on transient at zero load current (5ms/div).

Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: ON/OFF input,

5V/div.

Figure 6: Turn-on transient at full rated load current (CC mode)

(5ms/div). Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace:

input voltage, 20V/div.

Figure 7: Turn-on transient at zero load current (5ms/div).

Vin=48V.Top Trace: Vout, 2V/div; Bottom Trace: input voltage,

20V/div.

DS_E36SR05015_01042008

ELECTRICAL CHARACTERISTICS CURVES

Figure 8: Output voltage response to step-change in load

current (50%-25% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout

(100mV/div, 200us/div), Bottom Trace: I out (5A/div).

DS_E36SR05015_01042008

Figure 9: Output voltage response to step-change in load

current (25%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout

(100mV/div, 200us/div), Bottom Trace: I out (5A/div).

Figure 10: Test set-up diagram showing measurement points

for Input Terminal Ripple Current and Input Reflected Ripple

Current.

Figure 11: Input Terminal Ripple Current, i

, at 48Vin and 15A

output current with 12µH source impedance and 33µF

electrolytic capacitor (500 mA/div, 2us/div).

ELECTRICAL CHARACTERISTICS CURVES

Figure 12: Input reflected ripple current, i

, through a 12µH

source inductor at 48Vin and 15A output current (20 mA/div,

2us/div).

StripCopper

Vo(-)

Vo(+)

10u

SCOPE RESISTIV

LOAD

Figure 13: Output voltage noise and ripple measurement test

setup.

Figure 14: Output voltage ripple at 48Vin and rated load

current (Io=15A)(20 mV/div, 2us/div)

Load capacitance: 1µF ceramic capacitor and 10µF tantalum

capacitor. Bandwidth: 20 MHz.

Figure 15: Output voltage vs. load current showing typical

current limit curves and converter shutdown points.

DS_E36SR05015_01042008

 The input source must be insulated from the ac

mains by reinforced or double insulation.

 The input terminals of the module are not operator

accessible.

 If the metal baseplate is grounded, one Vi pin and

one Vo pin shall also be grounded.

 A SELV reliability test is conducted on the system

where the module is used, in combination with the

module, to ensure that under a single fault,

hazardous voltage does not appear at the module’s

output.

When installed into a Class II equipment (without

grounding), spacing consideration should be given to

the end-use installation, as the spacing between the

module and mounting surface have not been evaluated.

The power module has extra-low voltage (ELV) outputs

when all inputs are ELV.

This power module is not internally fused. To achieve

optimum safety and system protection, an input line fuse

is highly recommended. The safety agencies require a

normal-blow fuse with 10A maximum rating to be

installed in the ungrounded lead. A lower rated fuse can

be used based on the maximum inrush transient energy

and maximum input current.

Soldering and Cleaning Considerations

Post solder cleaning is usually the final board assembly

process before the board or system undergoes electrical

testing. Inadequate cleaning and/or drying may lower the

reliability of a power module and severely affect the

finished circuit board assembly test. Adequate cleaning

and/or drying is especially important for un-encapsulated

and/or open frame type power modules. For assistance

on appropriate soldering and cleaning procedures,

please contact Delta’s technical support team.

DESIGN CONSIDERATIONS

Input Source Impedance

The impedance of the input source connecting to the

DC/DC power modules will interact with the modules and

affect the stability. A low ac-impedance input source is

recommended. If the source inductance is more than a

few μH, we advise adding a 10 to 100 μF electrolytic

capacitor (ESR < 0.7 Ω at 100 kHz) mounted close to the

input of the module to improve the stability.

Layout and EMC Considerations

Delta’s DC/DC power modules are designed to operate

in a wide variety of systems and applications. For design

assistance with EMC compliance and related PWB

layout issues, please contact Delta’s technical support

team. An external input filter module is available for

easier EMC compliance design. Application notes to

assist designers in addressing these issues are pending

release.

Safety Considerations

The power module must be installed in compliance with

the spacing and separation requirements of the

end-user’s safety agency standard, i.e., UL60950,

CAN/CSA-C22.2 No. 60950-00 and EN60950: 2000 and

IEC60950-1999, if the system in which the power module

is to be used must meet safety agency requirements.

Basic insulation based on 75 Vdc input is provided

between the input and output of the module for the

purpose of applying insulation requirements when the

input to this DC-to-DC converter is identified as TNV-2 or

SELV. An additional evaluation is needed if the source is

other than TNV-2 or SELV.

When the input source is SELV circuit, the power module

meets SELV (safety extra-low voltage) requirements. If

the input source is a hazardous voltage which is greater

than 60 Vdc and less than or equal to 75 Vdc, for the

module’s output to meet SELV requirements, all of the

following must be met:

DS_E36SR05015_01042008

FEATURES DESCRIPTIONS

Over-Current Protection

The modules include an internal output over-current

protection circuit, which will endure current limiting for

an unlimited duration during output overload. If the

output current exceeds the OCP set point, the modules

will automatically shut down (hiccup mode).

The modules will try to restart after shutdown. If the

overload condition still exists, the module will shut down

again. This restart trial will continue until the overload

condition is corrected.

Over-Voltage Protection

The modules include an internal output over-voltage

protection circuit, which monitors the voltage on the

output terminals. If this voltage exceeds the over-voltage

set point, the module will shut down and latch off. The

over-voltage latch is reset by either cycling the input

power or by toggling the on/off signal for one second.

Over-Temperature Protection

The over-temperature protection consists of circuitry

that provides protection from thermal damage. If the

temperature exceeds the over-temperature threshold

the module will shut down.

The module will try to restart after shutdown. If the

over-temperature condition still exists during restart, the

module will shut down again. This restart trial will

continue until the temperature is within specification.

Remote On/Off

The remote on/off feature on the module can be either

negative or positive logic. Negative logic turns the

module on during a logic low and off during a logic high.

Positive logic turns the modules on during a logic high

and off during a logic low.

Remote on/off can be controlled by an external switch

between the on/off terminal and the Vi(-) terminal. The

switch can be an open collector or open drain.

For negative logic if the remote on/off feature is not

used, please short the on/off pin to Vi(-). For positive

logic if the remote on/off feature is not used, please

leave the on/off pin to floating.

Vo(+)Vi(+)

Vo(-)

Sense(-)

Sense(+)

Vi(-)

ON/OFF

Figure 16: Remote on/off implementation

Remote Sense

Remote sense compensates for voltage drops on the

output by sensing the actual output voltage at the point

of load. The voltage between the remote sense pins

and the output terminals must not exceed the output

voltage sense range given here:

[Vo(+) – Vo(–)] – [SENSE(+) – SENSE(–)] ≤ 10% × Vout

This limit includes any increase in voltage due to

remote sense compensation and output voltage set

point adjustment (trim).

Vi(-)

Vi(+)

Vo(-)

Vo(+)

Sense(+)

Sense(-)

Resistance

Contact

Contact and Distributio

Losses

Figure 17: Effective circuit configuration for remote sense

operation

If the remote sense feature is not used to regulate the

output at the point of load, please connect SENSE(+) to

Vo(+) and SENSE(–) to Vo(–) at the module.

The output voltage can be increased by both the

remote sense and the trim; however, the maximum

increase is the larger of either the remote sense or the

trim, not the sum of both.

When using remote sense and trim, the output voltage

of the module is usually increased, which increases the

power output of the module with the same output

current.

Care should be taken to ensure that the maximum

output power does not exceed the maximum rated

power.

FEATURES DESCRIPTIONS (CON.)

Output Voltage Adjustment (TRIM)

To increase or decrease the output voltage set point,

the modules may be connected with an external

resistor between the TRIM pin and either the

SENSE(+) or SENSE(-). The TRIM pin should be left

open if this feature is not used.

Figure 18: Circuit configuration for trim-down (decrease

output voltage)

If the external resistor is connected between the TRIM

and SENSE (-) pins, the output voltage set point

decreases (Fig. 18). The external resistor value

required to obtain a percentage of output voltage

change △% is defined as:

()

Ω−

=− KdownRtrim 2.10

511

Ex. When Trim-down -10%(5V×0.9=4.5V)

()

Ω=−=− KdownRtrim 9.402.10

511

Figure 19: Circuit configuration for trim-up (increase output

voltage)

If the external resistor is connected between the TRIM

and SENSE (+) the output voltage set point increases

(Fig. 19). The external resistor value required to obtain

a percentage output voltage change △% is defined

as:

()

Ω−

−

Δ+

=− KupRtrim 2.10

511

1.225

) (100 Vo11.5

Ex. When Trim-up +10%(5V×1.1=5.5V)

()

Ω=−−

=− KupRtrim 1682.10

511

101.225

) 10(100 511.5

The output voltage can be increased by both the remote

sense and the trim, however the maximum increase is

the larger of either the remote sense or the trim, not the

sum of both.

When using remote sense and trim, the output voltage

of the module is usually increased, which increases the

power output of the module with the same output

current.

Care should be taken to ensure that the maximum

output power of the module remains at or below the

maximum rated power.

DS_E36SR05015_01042008

THERMAL CONSIDERATIONS

Thermal management is an important part of the system

design. To ensure proper, reliable operation, sufficient

cooling of the power module is needed over the entire

temperature range of the module. Convection cooling is

usually the dominant mode of heat transfer.

Hence, the choice of equipment to characterize the

thermal performance of the power module is a wind

tunnel.

Thermal Testing Setup

Delta’s DC/DC power modules are characterized in

heated vertical wind tunnels that simulate the thermal

environments encountered in most electronics

equipment. This type of equipment commonly uses

vertically mounted circuit cards in cabinet racks in which

the power modules are mounted.

The following figure shows the wind tunnel

characterization setup. The power module is mounted

on a test PWB and is vertically positioned within the

wind tunnel. The space between the neighboring PWB

and the top of the power module is constantly kept at

6.35mm (0.25’’).

Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)

12.7 (0.5”)

MODULE

IR FLOW

50.8

(

2.0”

)

FACING PW

PWB

AIR VELOCIT

AND AMBIEN

TEMPERATUR

MEASURED BELO

THE MODUL

Figure 20: Wind tunnel test setup

Thermal Derating

Heat can be removed by increasing airflow over the module.

The hottest point temperature of the module is +122°C. To

enhance system reliability; the power module should always

be operated below the maximum operating temperature. If the

temperature exceeds the maximum module temperature,

reliability of the unit may be affected.

THERMAL CURVES

Figure 21: Hot spot temperature measured point.

＊ The allowed maximum hot spot temperature is defined at 122

℃

E36SR05015(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 24V (Transverse Orientation)

20 25 30 35 40 45 50 55 60 65 70 75 80 85

Ambient Temperature (

℃

)

Output Current(A)

Natural

Convection

200LFM

400LFM

300LFM

100LFM

500LFM

600LFM

Figure 22: Output current vs. ambient temperature and air velocity @

=24V(Transverse Orientation)

E36SR05015(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 48V (Transverse Orientation)

20 25 30 35 40 45 50 55 60 65 70 75 80 85

Ambient Temperature (

℃

)

Output Current(A)

Natural

Convection

200LFM

400LFM

300LFM

100LFM

500LFM

600LFM

Figure 23: Output current vs. ambient temperature and air velocity @

=48V(Transverse Orientation)

PICK AND PLACE LOCATION SURFACE-MOUNT TAPE & REEL

RECOMMENDED PAD LAYOUT (SMD)

DS_E36SR05015_01042008

LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE

Time ( sec. )

Pre-heat temp.

140~180

C 60~120 sec.

Peak temp.

210~230

C 5sec.

Ramp-up temp.

0.5~3.0

C /sec.

Temperature (°C )

100

150

200

250

300 60 0 120 180 240

2nd Ramp-up temp.

1.0~3.0

C /sec.

Over 200

40~50sec.

Cooling down rate <3

C /sec.

Note: The temperature refers to the pin of E36SR, measured on the pin +Vout joint.

LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE

Temp

Time

150

℃

200

℃

100~140 sec.

Time Limited 90 sec.

above 217

℃

217℃

Preheat time

Ramp up

max. 3

℃

/sec.

Ramp down

max. 4

℃

/sec.

Peak Tem

. 240 ~ 245

℃

25℃

Note: The temperature refers to the pin of E36SR, measured on the pin +Vout joint.

DS_E36SR05015_01042008

MECHANICAL DRAWING

Surface-mount module Through-hole module

Pin No. Name Function

+Vin

ON/OFF

-Vin

-Vout

-SENSE

TRIM

+SENSE

+Vout

Positive input voltage

Remote ON/OFF

Negative input voltage

Negative output voltage

Negative remote sense

Output voltage trim

Positive remote sense

Positive output voltage

DS_E36SR05015_01042008

MECHANICAL DRAWING (WITH HEATSPREADER)

THROUGH-HOLE MODULE

DS_E36SR05015_01042008

PART NUMBERING SYSTEM

E 36 S R 050 15 N R F A

Type of

Product

Input

Voltage

Number of

Outputs

Product

Series

Output

Voltage

Output

Current

ON/OFF

Logic

Length/Type

Option Code

E- Eighth

Brick

36-18~75V S- Single R- Regular 050- 5.0V 15-15A N- Negative

R- 0.170”

F- RoHS 6/6

(Lead Free)

A- Standard Functions

H- With Heatspreader

MODEL LIST

MODEL NAME INPUT OUTPUT EFF @ 100% LOAD

E36SR3R320NRFA 18V~75V 4.5A 3.3V 20A 88%

E36SR05015NRFA 18V~75V 5A 5.0V 15A 89%

Default remote on/off logic is negative and pin length is 0.170”

For different remote on/off logic and pin length, please refer to part numbering system above or contact your local sales

office

CONTACT: www.delta.com.tw/dcdc

USA:

Telephone:

East Coast: (888) 335 8201

West Coast: (888) 335 8208

Fax: (978) 656 3964

Email:

[email protected]

Europe:

Telephone: +41 31 998 53 11

Fax: +41 31 998 53 53

Email:

DCDC@delta-es.tw

Asia & the rest of world:

Telephone: +886 3 4526107 x 6220

Fax: +886 3 4513485

Email:

[email protected]

WARRANTY

Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon

request from Delta.

Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for

its use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license is

granted by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these

specifications at any time, without notice

Delta Electronics Delphi E36SR3R320NRFA User manual

Delta Electronics Delphi E36SR3R320NRFA User manual

Delta Electronics Delphi E36SR3R320NRFA User manual

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